Austroderia richardii*

Austroderia richardii* (Endl.) N.P.
Barker & H.P. Linder. Ann. Mo. Bot. Gard..

Classification. (GPWG 2001) : Subfamily Danthonioideae. Tribe

Basionym and/or
Replacement Name:
Endl., Ann. Wiener Mus. Naturgesch. 1: 158 (1836).

Type of Basionym or
Protologue Information
: HT: Herb. Richard 29, New Zealand: Havre de
l'Astrolabe (P; IT: CHR-236584 (fragm. ex P)).

Recent synonyms:
Cortaderia richardii (Endl.) Zotov, New Zealand J.Bot. 1:84

Key references
(books and floras):
[2002] D.Sharp & B.K.Simon, AusGrass, Grasses of

[2005] K.Mallet (ed.), Flora of Australia 44B: Poaceae 3 (Fig.3,

Perennial. Culms stature robust to moderate, 200–300 cm tall. Mid-culm
internodes hollow. Ligule a fringe of hairs. Leaf-blades 60–100 cm long, 5–20
mm wide. Leaf-blade surface glabrous.

Inflorescence compound, a panicle. Panicle lanceolate, dense, 30–60 cm long.

Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets, comprising 1–7 fertile floret(s), with diminished florets at the apex,
cuneate, laterally compressed, 18–35 mm long.

Glumes. Glumes
similar, similar to fertile lemma in texture, shiny. Lower glume linear,
hyaline, without keels, 1 -nerved. Upper glume linear, 20–35 mm long, hyaline,
without keels, 1 -nerved. Florets. Fertile florets female.

Fertile lemma 6–15 mm
long, without keel, 3 -nerved. Lemma surface indumented. Lemma apex lobed,
awned, 1 -awned. Median (principal) awn from a sinus, 8–12 mm long overall.
Palea 2 -nerved. Lodicules present. Anthers 3. Grain 2.5 mm long.

: Australasia.

: Tasmania.

Tasmania: West
Coast, Central Highlands.

Tasmania, introduced from New Zealand, along sandy stream banks. Flowers Jan.
to Feb.

AVH 2011


Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith